Burner tip for igniting devices



NOV. 22, 1932. Q, YAHNKA 1,888,404

BURNER TIP FOR IGNITING DEVICES Filed April 50, 1951 Patented Nov. 22,1932 UNITED STATES OTTO I. YAHNKA, OF EAST DEARBORN, MICHIGAN BURNER TIProe reivrrme nnvions Application filed April 30,

This invention relates to improvements in lighting devices for furnacesand pertains particularly to an improved type of tip for use inassociation with such devices.

The primary object of the present invention is to provide a gas burnertip which, mounted upon the end of a pipe arm, is designed to beinserted into the ash box of a furnace and through the grate, which isso formed that ashes or other matter cannot reach and clog up the gasoutlet apertures.

The invention will be best understood from a consideration of thefollowing detailed description taken in connection with the accompanyingdrawing forming part of this specification, with the understanding,however, that the invention is not confined to any strict conformitywith the showing of the drawing but may be changed or modified so longas such changes or modifications mark no material departure from thesalient features of the invention as expressed in the appended claim.

In the drawing:

Figure 1 is a View partly in elevation and partly in section of afurnace lighter showing the burner tip embodying the present invention.

Figure 2 is a vertical sectional view through the burner tip per se.

Figure 3 is a sectional view line 3-3 of Figure 2.

Referring more particularly to the drawing, wherein like numerals ofreference in dicate corresponding parts throughout the several views,there is shown a rigid pipe 1 which constitutes a supporting arm for theburner tip 2 so that the latter may be inserted into a furnace ash pit,through a door opening 3, to position the tip through the grate of thefurnace which is shown in dotted lines and indicated by the numeral 4.This pipe arm 1 is threaded at one end, as indicated at 5, to receive acoupling 6 over which one end of a flexible gas hose 7 may be engaged,the other end of this hose being connected with a valved outlet tip 8 ofa gas pipe 9 which may be located adjacent the furnace in connectionwith which the light ing device is to be used.

taken on the can accumulate in the recess.

1931. Serial No. 534,044.

The end of the pipe 1, opposite the coupling 6, has a right angularlyturned portion 10 which is interiorly threaded at the end, 8 asindicated atll.

The tip 2 is in the form of an elongated body with a reduced threadedextension 12, which is designed to be threadably engaged with thethreads 11 of the angled portion of the pipe arm 1. The body of the tiphas a passage formed therein from the end on which the reduced portion12 is formed to a point adjacent the opposite end, the opposite endbeing closed and in the form of a round head 13. Adjacent the round head13 of the tip there is formed a circumferential recess 14, the loweredge or shoulder of which is cut away or beveled from the bottom of therecess downwardly and outwardly, as indicated at 15, so that the upperpart of the recess has a shoulder which is at right angles to the basethereof and to the side of the tip, while the lower portion has anobliquely directed shoulder.

It will thus be seen that with the recess formed in this manner ashesand other material cannot readily collect in the recess.

The body of the tip has formed therethrough a plurality of radiallydirected passages 16 which lead from the bore 17 outwardly through thebottom of the recess 14, as illustrated.

In the use of the present device gas is allowed to flow through the pipehandle 1 to the tip 2 and through the passages 16 where it is ignited,and the tip is then extended through the door of the furnace ash box andinserted upward through grates into center of fuel until fuel isignited. The tip is held in place by weight of pipe handle. It will beseen that the outlet apertures 16 of the tip are well protected so thatthey cannot become clogged with dust or ashes and, by forming the lowerside of the recess 14 with the inclined wall or shoulder 15, no dirtHaving thus described the invention, what is claimed is:

A burner tip for a device including a. tube having an interiorlythreaded end, comprising an elongated body of cylindrical cross sectionand having a passage extending longitudinally therein from one end andterminating in close proximity to the other end, the bod at the saidother end being substantia y semi-spherical and having a surroundinggroove or channel therein, the top Wall of the channel extending in aplane at right angles to the longitudinal axis of the body, and furthersubstantially passing through the radial center of the semi-sphericalend, the wall of the body having a plurality of radial passagestherethrough from the bottom of said channel into the said longitudinalpassage, said channel having its lower corner cut away from a pointadjacent the bottom thereof outwardly to form an outwardly slopingshoulder, and the opposite end of the body from the rounded end beingreduced and exteriorly threaded for engagement in the threaded end ofsaid tube.

In testimony whereof I hereunto aflix my signature.

OTTO P. YAHNKA.

